NOS Electrex World RR55 Rectifier / Regulator for Suzuki GSX-R600 2001 to 2005. Electrex Part Number: RR55. Suzuki Part Numbers: 32800-33E10, 32800-33E20 and 32800-33E21. My Part Number: Electrex-RR55. New Old Stock Electrex World Rectifier / Regulator RR55 Suzuki GSX-R600 2001 to 2005. New advanced Hi-power MOSFET technology. Produces less heat than conventional shunt regulator. Works where airflow is limited. Manufactured in the UK. Please take a look at the photos for fitting and condition. Fits: Suzuki GSX-R600 2001 to 2005. Grab Yourself a Very Rare Part!